condition mean min max 4 h after light 10.272307999999999 9.823393 10.721223 8 h after light 10.087912 9.860602 10.315222 12 h after light 8.694380500000001 8.266146 9.122615 4 h after dark 10.3711045 9.900072 10.842137 8 h after dark 9.9435045 9.860602 10.026407 12 h after dark 10.141265 10.141265 10.141265